Classification:

attack

Tactic:

TA0005-defense-evasion

Technique:

T1562-impair-defenses

VIEW RULE IN DATADOG VIEW SIGNALS

Set up the tailscale integration.

Goal

Detect when the TailScale user approval configuration has been disabled.

Strategy

This rule monitors Tailscale logs for when the user approval configuration has been disabled. The user approval feature allows Tailscale network administrators to review and approve new users before they can join the network. An attacker disabling this could be an attempt to disable defenses.

Triage and response

1. Investigate the user {{@usr.email}} that disabled user approval within your Tailscale configuration.
2. If the activity is deemed malicious:
   • Begin your organization’s incident response process and investigate.